Perpetual calendar



J. I. ROUND. PERPETUAI. CALENDAR. APPLICATION FILED DEC. 9. I92I.

Iatnted Aug. 8, 1922.

lnvenom John'i Hound Mzvmj- UGG 23 24 25 2eI27 2a 29 3o 5I au 5I 9 .ImI a Fig. 8.

AINS.

1.1. ROUND.

P'ERPETUAL CALENDAR.

APPLIATON FILED DEC. 9, 92).

www?

Patented Aug. 8, 1922,

2 SHEETS-SHEET 2.

John J. Hound by J'OHNJ. nonni), or WAK-Emision, MASSACHUSETTS;

EERPET'UA'L CALENDAR.

Specification or" Letters Patent.

refereert-angl s, ieee,

application ied December 9, i921( serii ne. 5a'i,'o9"5.

To all fr0/0m 'it may concern:

Be it known that l, JoHN J. ROUND,- a

citizen of the lUnited States, and resident o'l`lv l/Vakelield, county of Middlesex, `State ot lilassachusetts,li'ave invented an limprovement in Perpetual-Calendars, ot which the :tollowing description, in connection with the accompanying`- drawing, isa specification, like characters on the drawing representing like parts.

This invention relates to improvements 'in perpetual'calendars and the object thereof is to provide aperpetual calendar which may be applied to orii'icorporated in a pencil, fountain pen, or like device'. I"

A. further object ot the invention is to provide a perpetualcalendar comprising a set ot' three relatively rotatable co-aii'ial cylinders, preferably tubular inform, bearing respectively the naines ot the months ot the year arranged in a predetermined sequence, the days ot the months ot' theyear arranged in tabular' torni, and the names ofthe days ot the week, and in so constructing such cylindersthat when two ot'the cylinders are set in a predetermined adjustment the inanipulation ot the other cylinder will'serve to present a correct'calendar .tor rany select month ot any year, except leapvyear. rEhe calendar is also so arranged that byy a simple adjustment a proper calendar tor each ot the months of a leap year may also be displayed.

A further object ofy the invention is to provide a perpetual calendar of the character described in which one ofthe tables may be engraved or printed upon and formed a part ot the barrel ot a pencil or pen or like device. p

More particularly the invention comprises a perpetual calendar tor pencils and the like comprising three co-axial, relatively adjust* able, cylinders bearing respectively a weekly table displaying` the names or initials ot the days oit the week in a predetermined order, a daily table having numerals indicating the days otthe month arranged consecutively in rows and columns, inV one of which the numerals progressively increase by seven, and a monthly table displaying the 'naines ot' the months ot the year in a predetermined sequence, suchthat by establishing a fixed setting between the cylinder bearing the monthly table and one of the other table bearing cylinders tor January ot any year,

(except leap year), a correct/calendar any month lot that year 'may be'displayed by so adjusting the third table .bearing cylinder that `the y'column "ot the daily table 'bearingf thev numeral one is placed in' alinementv with the name ot the initiallday of the selected month.

These andother'objects andifeatures of the invention willinorey fully appear from the following description and the accompanying drawings and will loel pointed/outT in the'claims.

In the drawings: Fig. l is a view in elevation ot alpreterred form of my invention as applied't a pencil or similar device; f

Fig. 2 is a similar elevation with' the outer' Fig. lis a horizontal sectionall View on line 4 4, Fig. l;

Fig. 5 is a horizontal sectional view-oli line 5 5, Fig. l;

Fig. 6 is a horizontal sectional view on line 6 6, Fig. 3-

Fig. 7 is a view showing a development of the inner cylinders,vwhich` preferably: are' of the same diameter;

Fig. 8 is an elevation ot almodiiied form of the pencil illustrated in Figs. l, 2 and 3, comprising a larger aperture for display? ing the table showing` the`I namesl oit'the months of the year;

Fig. 9 is an elevation ot'a preferred Jform ot the invention in which the` position of the cylinders bearing vvthe table having the names oi" the months and numerals corresponding to the days otthe month, are reversed from the position shown inthe preceding ligures;

l0 is a detail verticall sectionalview ot' the upper portion ot the device illustrated in Fig. 9, showing a preferred means for limiting the extentot'rotation of the outer cylinder ot the pencilillustrated in Fig. 9;

Fig. 11 illustrates a development ot the upper and lower cylinderso'f' the device shown in Fig. 9 which bear*r respectively tables containing the daysofl the months and the nainesr of the months;

Figyl is an elevation of :i2-simplified form of perpetual calendar embodying the invention;

Fig. 13 shows a development of the cylinders set in a predetermined relation to present a correct calendar for a selected month initial day of the 'month, opposite the nuof a particular year;

Fig. 14 is a detail sectional View showing the means for setting the cylinders; and,

Fig. 15 is a plan View of the intermediate cylinder alone.:

The selected forms of a perpetual calen dar embodying my invention are illustrated herein as lappplied to, or embodied in, the cylindrical barrel ofva pencil, pen, or other device'su'ch as may be conveniently carried in the pocket of the user, but it will be understood that such embodiments of the invention and other modifications may be employed in other relations Within the scope of my` invention as defined by theclaims. j

In the embodiments of the invention herein illustrated the cylinders bearing the various tables are coaxially arranged and adapted for rotativerelative adjustment, but it Will be readily understood that the cylinders` may be provided With tables suitably arranged to enable relatively longitudinal adjustment of one or more of thecylinders to display the correct calendar for each month of the year by such adjust ment and manipulation as Will beobvious to .l those skilled in the art. It will, therefore, be understood that the embodiments of the invention particularly disclosed hercin are of an illustrative character and are not restrictive and that-various .modifications in-form, arrangement and construe` tion of parts may be made within the scope of the, invention as define d by the claims.

One of the preferred constructions which is illustrated in Fig. 1 comprises a central cylinder or barrel 1 having mounted upon it tivo table bearing cylinders 2 and 3, preferably ofthe same diameter and adapted to be rotatably adjusted relatively to each otherrand fixed in predetermined adjusted positions,.and a third cylinder 1 preferably telescopic-ally mounted upon the cylinders 2 and 3 and also rotatably adjustable relativelyto said cylinders. j j As illustrated in Figs. 1 to 7 inclusive, the cylinder Qbears a daily table having numerals indicating the days of the months arranged consecutively in rows superimposed in columns in lWhich the numerals progressively increase by seven, that is to say, thenumerals in the rows are in consecutive order 1, 2; 3, etc., and the numerals inthe vertical columns increase by seven downwardly, as, 1, 8, 15, etc.

The cylinder 3 bears a monthly table displaying the names of the months of the year in a predetermined sequence such that a "f predetermined adjustment or setting may be made between the names of the months cylinder bearing the names of the days of j the Weeks may be so positioned by placing the name ofthe dayfof the Week, which is the meral one on the monthly table, that a `correct calendar is displayed by said table and'can be readily'read by the user.

A table bearing` the preferred sequence ofthe monthsv is illustrated in Fig, 7 and is as folloWs:-

APR 30 JULY 31 SEPT 30 DEC 31 JUNE 30 28 i. FEB 29 MAR 31 NOV so AUG 31 MAY 31 In certain ofthe constructions shown this sequence is reversed, but thel order is unchanged. A y

l Means are provided for setting the cylinders 2 and 3 relatively to each other in a fixed relation so that these cylinderslmay remain set throughout vany year; excepting leap year7 and may be adjusted for leap year by rotatably adjusting the cylinders one step.

A convenient means for thus permanently adjusting the cylinders 2 and 3 for the year comprises a series of seven notches in one of the cylinders and a co-operating lug in the other adapted to enter such notch. As illustrated in Figs. 2 and 7 the table bearing cylinder 2 is provided with a series of recesses 5 and the cylinder y3 Awith a proskjection 6 adapted to enter any of the rebeneath the letter indicating the day of the j For eX- Week upon which the year enters. ample, for-the year 1921, the vfirst day of January Was Saturday. The numeral one, therefore; on the calendar cylinder 2 is placed beneath the letter PS7 representing Saturday which is inscribed or printed upon the ymonthly cylinder. The cylinder 4 is roo llO

then telescopically placednpon the cylinders 2 and 3. The cylinder'fi'is provided'with a` sight opening G'ofsufficient area to displayy seven columns and five rows so that a table is presented displaying a.v column for eachday. in the week androws for the successivel opening that the columns thereon will. ap-

pear directly under the days of the week which are inscribed upon the cylinder a intermediate of the sight opening 6 and the aperture 7 through which the names of the months appear. Thus after having once set the calendar it is merely necessary'in order to use the saine that the outer cylinder 1 be rotated until the name of the` month is visible through the aperture 7 whereupon the correct calendar will appear in the sight opening.

Any suitable means may be provided for limiting the relative movement of the cylinders and for clamping the cylinders in place. ln the construction shown in Figs. l'to 7 inclusive the monthly cylinder Q is iiXedly secured to, or if desired may be made-integral with, the barrel 1, or if desired the numerals may be inscribed directly upon the barrel. The barrel or cylinder@ dee sirably is providedwith a flange Sto form an abutment for the Alower endfo'f the cylinder 9. and also desirably is provided with a lug 9 which exteneds into a recess l0 in the lower portion of the cylinderl, the recess 10 being of sufficient lengthy only to permit a relative rotation equallingthe width of seven of the columns on they daily table inscribed upon the cylinder'Q.

The cylinders Q. and 3 are normallyretained in interloclted position by a cap 11 fitting upon the lbarrel and having a flange 12 eX- tending downvvardly. uponthe outside` of the upper end ofthe cylinder e. A. pin 13 in said flange engages a notch in the upper end of the cylinder l to prevent relative movement therebetween. An expansible plug 14 is inserted in the upper end ofthe barrel and is providedifv'ith` a head 15 of larger diameter than the barrel adaptedgto engage frictionally the cap 11 so thatr it will hold the outeincylinder 4 "from rotation relatively to the cylinders 2 and '3 when once vadjnsted'for a selectedy month.v The plug 14 may be made ofrubberor formed in any suitable' ex'pansible form, and the top 15may be formedA ofrubb'er or metal ormay present anvornamental device.

in theconstructionvshown in Fig. 8 the same relative arrangement ofA table bearing in predetermined sequence of the names-of the months and the table bearingv the numerals indicating the days of the month aresimilarly disposed, butare notlconnected together. The rotatable'cylinder 1i, which bears thedays of the week, is'providedwithav sight opening 16 of sufficient area to display ally of the months-of the year and is so arranged as to` be secured in fixed adjustment or setting relatively to the cylinder bearing the monthly table 3. rlGhis 'is accomplished by 4providing the-upper endfof thefcylinder witli a seriesofseven notches 17 adapted to be engagedbya snit# able lug 18 on the cap-19.

In" setting this -form of calendarfor a year the cylinder 3 bearing the monthly table is turned until'the/'nameA ofthe month is opposite ythe lette-ry ofthe week which corresponds to thecla-y of the weelr for the first dayl ofy January. The cap is then presseddownwardly to loclr'the cylinders 3 and in this adjustment,- lf then theecyli'nder 4 is rotated relatively to 4the' cylinder Q until the numeral onef7 appears under the day of the weelr on the cylinder #i 'which corresponds to thefirst'day of' any-month a correct calendar for that month will be presented in the sight-apperture. Inthis device the monthly sequenceis reversed.

The construction illustratedin Figs. 9, l0 andv 11 is similar-tothat` disclosed in Figs. 1 tof7l inclusive eXceptstha-tr thevposition ofthe cylinders 2 and-3 'are reversed, the cylinder 2f bearing the daily table being placed above the cylinderA 3 which bears the names of the months in a predetermined sequence. In this construction, therefore, the monthly'table is fiXedly secured to, orzintegral with', the barrel 1. Ar further modifi-cation in4 this construction consists inA formingthe upper end of the cylinder ewith Lan inturned 'fiange 2O which overlies theupper end of the cylinder; The -upperend 'ofthecylinderQ vis provided with' a recess 21'01" alength equaltothe width of seven colums, anda -lug V22,'eatending downwardly from the inturned flanged end 2O into the'recessil, serves to limit the relative rotation of' the cylinderv i'to the cylinders 2 and 3.'

A. simplified form of the rinvention is disclosed in Figs. 12, 13, 14 and 15, in which' all "of the cylindersiare ofthe same diameter. Whilethis .construction is less convenient-it has the advantage of enabling larger col# umns to be employedand consequently en'- ables thejnumerals'and 'lettering lto be made more prominent.r-`

In this *construction the'b'arrel l1 lhas fixed-f llt? lyv secured upon it, or formed integral there, with, a lower cylinder 23 bearing columns having the names of the months arranged `in the 'same predetermined,sequenceas above described. :This sequence is illustrated in Fig. 13 and upon examination .will be -ifound to be the same in `order as that shown in Figs, 7 and 1l, although in its development the cylinder is cut along a dii- 'ferent line. Immediately above the cylinder 23 a weekly cylinder` 24 is located and is adapted to be set relatively, to the cylinder 23 by interlocking members such as a pin 25 extending upwardly from the upper edgeo the cylinder 23 adapted to enter. any one of seven recesses 26 spacedv apart the width of the columns designating the months.y rllhe cylinderQll is yprovided with a series of columns containing the names of the days of the week, these columns being of the same width as the columns containing the names ofthe months. The third daily cylinder 27, bearing numerals in rows and columnsas above described, is superimposed upon the cylinder 27 and is provided with a pin 28 adapted to interlock anyone ot the seven,

recesses 26v in the cylinder 24:, as these recesses may extend entirely across the under wall o1q the cylinder 24 as illustrated in Figs. 14 and 15. lThe cylinders 23, 24 and 27 may be secured in the barrel l by an expanding plug 29 of the character above described,

In order to set this calender for any year the plug `is removed and the cylinders separated. The cylinder 2li is .thengrotated abouttlie barrel 1 until the column thereon containing the name of the day of the week is opposite the. column containing January on the table bearing cylinder 23. The cylinders 23 and 24then stand adjusted for anyv year except leap year. t

ln order to adjust the calendar tor any month the cylinder-"27 is rot-ated about the barrel until the numeral one appears in the column containing the day of the week corresponding to that of the first of thekmonth. The cylinder 29 is then moved end-wise toward the' cylinder 24 so that the pin28 will interlock vwith the groove in the cylinder 24 which it is opposite, and the plug inserted. yThis calendar may then be used for the selected month.

When it is ,desired to adjust thecalendar for` another month the upper sleeve 27 is moved longitudinallyot the barrel until the pin 28 is disengaged andis then rotated until the numeral conef stands in the column lcontaining the name of the day of the -weelr which ushersin the selected month. The cylinder is then again forced downwardly into place where it is held by the'pin 28,and the plug 29 replaced. l

lt will be seen from the above disclosure that the invention may be embodied in various different constructions andthat the rela'- :rassurer tive arrangement of the cylinders, the manner in which two or more of them maybe secured together, is relatively unimportant except ttor convenience inV setting, manipulation .and reading, and that the invention contemplates broadly any arrangement ofV superimposed orf associated' tablev bearing cylinders yin which the itemsof the tables are arranged in suchy predetermined sequence that they may be so `adjusted .as to present correct calendars for the months of any year, and in which two of the cylinders may be set in a permanentrelation which will be effective throughout any year-v but leap year, but which may be adjusted for leap' year from and after the end of February` by adjusting the setting one column from or after the endo February.

Having thus described my invention, what l claim as new, and ldesire to secure by Letters Patent, is: 'i i l l. A. perpetual calendar comprising three co-axial relatively adjustable cylinders bearing` respectively a weekly table displaying the names of the days of the week` in a predetermined order, a daily table having numerals indicating the days oi" the month arranged consecutively in rows and' columns in one of which the numerals progressively in-. crease seven, and a monthly table displaying the names of the months ot the year in a predeterminedsequence, adjustable interengaging members respectively upon the monthly table bearing cylinder andone of, the other tablevbearing cylinders such that lay-establishing for a series ci" months a fixed setting Abetween the cylinder bearing the monthly table and :said intereugaged table bearing cylinder a correct calendar will be displayed by so adjusting the third table bearing cylinder that the numeral one is placed opposite the name of the dayot the week corresponding :to the name o'l" the first day of the selected month.

.2. A perpetual calendar comprising three co-axial relatively adjustable cylinders bearing respectively a weekly table displaying` the names of the days ojl" the week in usual order, a daily table having numerals indicating thevdays of the month arranged con secutively in rows superimposed in columns in which the numerals progressively increase llt] bearing the monthly table and said interengaged tablev bearing vcylinder for January of any yeary (except leap year) a correct calendar for anyI month ot that year will be displayed by so adjusting the third table bearing cylinder that the column oi the daily table bearing the numeral one is placed in alinement with the name ot the day oi the week corresponding to the name oit the first day of the selected month.

3. A perpetual calendar comprising three co-aXially arranged rotatably adj able cylinders bearing respectively vfcely.v table displaying the names of; the days oit the week in a predetermined order, a daily table having numerals indicating the days of the month arranged consecutively in rows superimposed in columns in which the numerals progressively increase by seven.` and a monthly table displaying the names ot the months of the year in a predetermined sequence adjustable interengaging members respectively upon the monthly table bearing cylinder and one ot the other table bearing cylinders such 'that by establishing a lined settingl between the cylinder bearing the monthly table and said interengaged table bearing cylinder ior January of any year, (except leap year), a correct calendar Yfor any month oit that year will be displayed by so adjusting` the third table bearing cylinder that the column of the daily table bearing the numeral one is placed in alinement with the name ot the selected month, and by rotatably resetting said interengaging members to advance the .monthly table bearing cylinder one column. on March first ot leap year, a correct calendar for that and the following months of the year will be displayed by so adjusting the third table bearing cyl inder that the column ot the daily table bearing the numeral one is placed in alinement with the name of the selected month.

l. A. perpetual calendar comprising two co-a-Xially arranged rotatable, adjustable cylinders of equal diameter displaying respectively a daily table having numerals indicating the days of the month arranged consecutively in rows superimposed in columns in which the numerals progressively increase by seven, and a monthly table displaying the names of the months arranged in a predetermined sequence, and also bearingthe names of the days of the week in sequence, means for establishing a iixed setting between said cylinders, and a third cylinder displaying a weekly table, enclosing the cylinders bearing the daily and monthly tables, rotatably adjustable relatively thereto, having a sight opening so arranged that when the monthly and daily tables are adjusted to position the numeral one in alignment with the name of the day of the week on the monthly table which corresponds to that of the irst ot January ot any year (except leap year) the rotation of the cylinder bearing the weekly table to a position to bring the name of the day ot the week on which the selected month begins into alignment with the column bearing the numeral one will display a correct calendar for the selected month in said sight opening.

5. A perpetual pencil calendar comprising a pencil barrel having thereon a cylindrical section presenting a monthly calendar bearing the names of the months arranged in a predetermined sequence, a cylinder rotatably adjustable on said barrel bearing ka monthly calendar having numerals indicating the days of the months arranged consecutively in rows superimposed in columns in which the numerals progressively increase by seven, means for establishing a iXed setting between said cylinders 'for a series of months and a rotatable weekly table bearing cylinder, enclosing said cylinders, and having a sight opening to display a monthly table and a narrow aperture to display the name of a month, said pre-arrangement of the months and the position of said narrow aperture being such that when the name of any month is visible through said aperture the correct calendar for that month will be displayed in said sight opening.

6. A perpetual calendar comprising a pencil barrel having thereon a cylindrical section presenting a monthly calendar bearing the names of the months arranged in a predetermined sequence and also bearing a table indicating the days of the week, a cylinder rotatably adjustable on said barrel bearing` a monthly calendar having numerals indicating the days of the month arranged consecutively in rows superimposed in columns in which the numerals progressively increase by seven, means for maintaining a predetermined fixed setting between said cylinders, such that the numeral one of the daily table shall be in alinement with the name of the day of the week on the cylinder bearing the monthly table which corresponds to that of the first day of January of a selected year and a rotatable weekly table bearing cylinder, enclosing said cylinders, and having a sight opening to display the monthly table and a narrow aperture to display the name of a month, said pre-arrangement of months and the position of said narrow aperture being such that when the name of the month is visible through said aperture a correct calendar for said month will be displayed in said sight opening.

In testimony whereof, l have signed my name to this speciiication.

JOHN J. ROUND. 

